diff --git a/DM_Weight/Port/PortUtil.cs b/DM_Weight/Port/PortUtil.cs
index cabb501..edfbea5 100644
--- a/DM_Weight/Port/PortUtil.cs
+++ b/DM_Weight/Port/PortUtil.cs
@@ -783,12 +783,30 @@ namespace DM_Weight.Port
         private int[] Decimal2Chunks(int d)
         {
             string s = Convert.ToString(d, 2);
-            List<int> t = s.Split().Select(it => Convert.ToInt32(it)).Reverse().ToList();
-            while (t.Count < 8)
+            int[] chars = new int[8];
+            char[] schar = s.ToCharArray();
+            Array.Reverse(schar);
+            int[] iArray = Array.ConvertAll(schar, c => (int)Char.GetNumericValue(c));
+            int[] addArray = new int[8 - iArray.Length];
+            if (iArray.Length < 8)
             {
-                t.Add(0);
+                for (int i = 0; i < 8 - iArray.Length; i++)
+                {
+                    addArray[i] = 0;
+                }
+                chars = iArray.Concat(addArray).ToArray();
             }
-            return t.ToArray();
+            else
+            {
+                chars = iArray[0..iArray.Length];
+            }
+            return chars;
+            //List<int> t = s.Split().Select(it => Convert.ToInt32(it)).Reverse().ToList();
+            //while (t.Count < 8)
+            //{
+            //    t.Add(0);
+            //}
+            //return t.ToArray();
         }
 
         #endregion